<template>
  <div class="login-container">
    <van-nav-bar class="page-nav-bar" left-arrow @click-left="$router.back()" title="登录" />
    <van-form @submit="onSubmit" ref="loginForm">
      <van-field
      name= "mobile"
      v-model="user.mobile"
      :rules="userFormRules.mobile"
      type="number"
      maxlength="11"
      placeholder="请输入手机号">
        <i slot="left-icon" class="toutiao toutiao-shouji"></i>
      </van-field>
      <van-field
      v-model="user.code"
      name="code"
      :rules="userFormRules.code"
      type="number"
      maxlength="6"
      placeholder="请输入验证码">
        <i slot="left-icon" class="toutiao toutiao-yanzhengma"></i>
        <template #button>
           <!-- 倒计时 -->
            <van-count-down 
            v-if="isCountDownShow"
            @finish='isCountDownShow = false'
            :time="1000 * 60" 
            format="ss s" />
          <van-button 
          v-else
          native-type="button" 
          class="send-sms-btn" 
          size="small" 
          round 
          type="primary"
          @click="onSendSms"
          >发送验证码</van-button>
         </template>
      </van-field>
      <div class="login-btn-wrap" style="margin: 16px;">
        <van-button class="login-btn" block type="info" native-type="submit">提交</van-button>
      </div>
    </van-form>
  </div>
</template>
<script>
import { login } from '@/api/user'
export default {
  name: 'LoginIndex',
  data () {
    return {
      isCountDownShow: false, // 控制倒计时的显示和隐藏
      user: {
        mobile: '',
        code: '',
      },
      userFormRules: {
        mobile: [
          {
            required: true,
            message: '手机号不能为空'
          },
          {
            pattern: /^1[3|5|7|8]\d{9}$/,
            message: '手机号格式错误'
          },
        ],
        code: [
          {
            required: true,
            message: '验证码不能为空'
          },
          {
            pattern: /^\d{6}$/,
            message: '验证码格式错误'
          }
        ]
      }
    }
  },
  methods: {
    // 表单提交事件
    async onSubmit (values) {
      // console.log('submit', values)
      const user = this.user
      // console.log(user)
      this.$toast.loading({
        message: '登录中...',
        forbidClick: true, // 禁用背景点击
        duration: 0 // 持续时间，默认是 2000，如果为 0 则持续展示
      })
      try {
        const res = await login(user)
        // console.log(res)
        this.$store.commit('setUser', res.data.data)
        this.$toast.success('登录成功')
        // 登录成功,跳转回原来的地址
        // back 的方式不严谨,
        if (this.$router.query) {
          this.$router.push(this.$route.query)
        } else {
          this.$router.back()
        }
        // this.$router.push('/my')
      } catch (error) {
        if (error.response && error.response.status === 400) {
          this.$toast.fail('手机号验证码错误')
        } else {
          this.$toast.fail('登录失败，请稍后重试')
        }
      }
    },
    async onSendSms () {
      // console.log(123)
      try {
        await this.$refs.loginForm.validate('mobile')
      } catch (err) {
        return console.log(err)
      }
      this.isCountDownShow = true
    }
  }
}
</script>

<style scoped lang="less">
.login-container {
  .toutiao {
    font-size: 37px;
  }
    .send-sms-btn {
    // width: 160px;
    height: 46px;
    line-height: 46px;
    background-color: #ededed;
    font-size: 22px;
    color: #666;
  }
   .login-btn-wrap {
    padding: 53px 33px;
    .login-btn {
      background-color: #6db4fb;
      border: none;
    }
  }
}

/deep/ .van-button--primary {
  border-color: #1989fa !important;
}
</style>
